Results 81 to 90 of about 37,855 (304)

Influence of land use on structure and dynamics of populations of woody plants in savannas, West Africa [PDF]

, 2012
Savanna regions in West Africa are valuable cultural landscapes and provide a wide range of ecosystem services for human well-being and are frequently affected by human-induced disturbances.
Jurisch, Katrin
core  

Pedo‐Climatic Controls on Soil Health Recovery Across Cultivation Chronosequences: Hydraulic Conductivity as a Potential Link Between Soil Structure, Microbial Biomass, and Nutrient Availability

Land Degradation &Development, EarlyView.
ABSTRACT Long‐term cultivation can improve soil health, but recovery may not follow the same pathway across contrasting soil and climate conditions. A key unresolved question is whether soil health recovery is mainly associated with the release of physical–chemical constraints or with the gradual rebuilding of carbon, microbial biomass, and nutrient ...
Manal A. Alnaimy, Manas B. Kezekia, Khaled G. Soliman, EL‐Sayed A. EL‐Naka, Ahmed Salah Elrys   +4 more
wiley   +1 more source

SOIL TILLAGE AND FERTILIZER EFFECTS ON SOIL MOISTURE RETENTION, GROWTH AND SEED COTTON YIELD OF THE POPULAR FK37 COTTON IN NORTHERN GHANA. [PDF]

Journal CleanWAS
Cotton is a cash crop and enhances farmer livelihoods in northern Ghana. However, cotton yields are diminished because of drought and poor agronomic practices that result in lower lint quality.
Ramson Adombilla, Emmanuel Boachie Chamba, Foster Kangben, Abeka Hammond   +3 more
doaj   +1 more source

Dicrananthera hedyotidea C. Presl. (Melastomataceae) in Maranhão state, Brazil: first record and ecological niche model of the species

Nordic Journal of Botany, EarlyView.
Dicrananthera C. Presl. is a monospecific genus of the tribe Marcetieae, comprising perennial herbs typically occurring in areas adjacent to wetlands. The species exhibits a disjunct distribution, with confirmed records in both the Amazon and Atlantic Forest domains.
Elias Julio Oliveira Correa, Sandro Márcio dos Santos Junior, Antônio Fernando Costa da Silva, Kalynne Nayara Lima dos Santos, Eduardo Bezerra de Almeida Jr   +4 more
wiley   +1 more source

Savanna City Hospital [PDF]

An unused postcard of the Savanna City Hospital located in Savanna, Illinois.Postcard of the Savanna City Hospital in Savanna ...

core  

Impact of land-use on savanna vegetation and populations of non-timber forest product-providing tree species in West Africa [PDF]

, 2011
Savannas are the most important timber and non-timber forest products (NTFPs) providing ecosystems in West Africa. They have been shaped by traditional human land-use (i.e. agriculture, grazing, and harvesting) for thousands of years. In the last decades,
Schumann, Katharina
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Pyramiding aphid resistance genes into the elite cowpea variety, Zaayura, using marker-assisted backcrossing

Heliyon
The cowpea aphid (Aphis cracivora) is a cosmopolitan insect pest that causes economic damage on cowpea. Although the pest persists at all the growth stages of the crop, in West Africa, aphids are the only major insect pests that farmers regularly control
Patrick Attamah, Francis Kusi, Alexander Wireko Kena, Frederick J. Awuku, Salim Lamini, Gloria Mensah, Mukhtaru Zackaria, Emmanuel Yaw Owusu, Richard Akromah   +8 more
doaj   +1 more source

Vitex oreadica and V. umbellata (Lamiaceae): two new species from Cerrado and Atlantic forest of Brazil

Nordic Journal of Botany, EarlyView.
Vitex L. is a pantropical genus of Lamiaceae comprising 209 taxa. Brazil harbors 35 species, representing nearly 50% of the genus richness in the Neotropics, with the Amazon showing the highest richness, followed by the Atlantic Forest and Cerrado domains. Nevertheless, most taxonomic studies of the genus have been conducted in Africa and Asia.
Thaís Teixeira Conegiro, Guilherme Medeiros Antar, Carla Poleselli Bruniera   +2 more
wiley   +1 more source

Figments of Imagination v. 26 (2018): 8-9 [PDF]

, 2018
Short story "Alone in a Bar" by Savanna Taylor; photograph "Harvesting Hope" by Hunter ...

core  

Advances and challenges in the implementation of strategic adaptive management beyond the Kruger National Park – Making linkages between science and biodiversity management

Koedoe: African Protected Area Conservation and Science, 2011
South African National Parks (SANParks) makes use of strategic adaptive management (SAM) to achieve its primary mandate of biodiversity conservation.
Angela Gaylard, Sam Ferreira
doaj   +1 more source